setfu.gemspec in setfu-1.1.0 vs setfu.gemspec in setfu-1.2.0

@@ -21,11 +21,12 @@
 
   spec.files         = `git ls-files`.split($/)
   spec.executables   = spec.files.grep(%r{^bin/}) { |f| File.basename(f) }
   spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
   spec.require_paths = ["lib"]
+  spec.required_ruby_version = '>= 1.9.1'
 
   spec.add_development_dependency "bundler", "~> 1.3"
-  spec.add_development_dependency "rake"
-  spec.add_development_dependency 'rspec'
-  spec.add_development_dependency 'byebug'
+  spec.add_development_dependency "rake", ">= 10.1.0"
+  spec.add_development_dependency 'rspec', ">= 3.3.0"
+  spec.add_development_dependency 'byebug', ">= 5.0.0"
 end